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Dimpling and soldering a 1/2" NPT coupler in a stainless homebrew kettle / pot

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Published on Jan 10, 2011

This is how I put fittings in my homebrew kettles, HLT and MLT. It's easier than welding, cheap to get started (cost me less than $20 in flux and solder from Ebay) and really works a treat. Anyone can do this. If you don't have a MAPP tank, a regular propane tank will work as well.

Flux is Harris Stay-Clean. Solder is Harris Stay-Brite 4% silver-bearing.

Parts list for the dimpling tool - note the tapered adapter may need to be opened slightly to fit over the 5/8" bolt (just a few thousandths of an inch). If you don't have a Dremel or other tool to do this, you may want a 9/16" bolt instead:

5/8"-11 x 4 1/2" bolt
5/8" washer
3/4" to 1/2" stainless steel butt-weld pipe fitting (McMaster-Carr p/n 45605K711)
1" stainless socket weld low pressure coupling (McMaster-Carr p/n 4335T64)
1/2" washer (drilled to 5/8" with the step bit)
5/8" washer
5/8"-11 nut

Close-up photo of the dimpling tool:
http://i19.photobucket.com/albums/b16...

Visit us on the web at http://www.manskirtbrewing.com/

Contact me at info@manskirtbrewing.com.

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